Winner! All seed of this variety is taken only from plants that spent the winter in Caleb's backyard garden without any protection, despite minus 19 below zero temperatures! Above is a photo of this lettuce in my garden in December, in a cold frame. I planted ten federal seed bank accession varieties on Oct. 1 and grew them all winter without any cover or frame -- and this variety was the clear winner! I am the only person in the world to offer this seed for sale, and because I developed the seed, I got to name it :) Works well for fresh winter garden growing as well as summer. 50 heirloom, chemical-free seeds per packet. Annual. Free shipping on orders over $32.

NUTRITION INFO: Caleb's Deep Winter Lettuce provides 130%DV (daily value) of Vitamin A, 6%DV Vitamin C, 5%DV potassium, 4%DV dietary fiber, 4%DV iron, and 2%DV calcium.

HOW TO GROW: Press soil onto soil as soon as the ground can ber worked in spring, or anytime in spring or autumn. Plant in shad for summer starting. Keeping moist until germination, which may take two weeks, or longer in early spring. Harvest the outer leaves for continual harvest, or the whole head. Plant seeds four inches apart. Some people might say this is too close together, but if you are harvesting for eating, this spacing is ideal. For winter growing, please follow the instructions in Backyard Winter Gardening by Caleb Warnock, available at Amazon.com.

THE SEEDRENAISSANCE.COM GUARANTEE: Every seed I sell is guaranteed pure, NEVER hybrid, GMO, patented, or corporate owned. Our food supply MUST remain in the public domain. Join me in creating a renaissance in our backyard gardens :)